E16.1
Billable

Other hypoglycemia

Billable / Specific Code

What is Other hypoglycemia?

ICD-10-CM E16.1 is the diagnosis code for Other hypoglycemia. This code falls under the section "Other disorders of glucose regulation and pancreatic internal secretion" within Chapter 4 — Endocrine, nutritional and metabolic diseases (E00-E89). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for E16.1

✅ This Code Includes

  • Functional hyperinsulinism
  • Functional nonhyperinsulinemic hypoglycemia
  • Hyperinsulinism NOS
  • Hyperplasia of pancreatic islet beta cells NOS

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as E16.1. They are mutually exclusive:

  • diabetes with hypoglycemia (E08.649, E10.649, E11.649, E13.649)
  • hypoglycemia in infant of diabetic mother (P70.1)
  • neonatal hypoglycemia (P70.4)

ICD-10-CM Code Hierarchy

Understanding where E16.1 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

Is E16.1 a billable ICD-10-CM code?

Yes, E16.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does E16.1 mean?

E16.1 is the ICD-10-CM diagnosis code for "Other hypoglycemia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of E16.1?

The parent code of E16.1 is E16 ("Other disorders of pancreatic internal secretion"). E16.1 provides a more specific classification within this category.

What section is E16.1 in?

E16.1 is located in Section E15-E16 — "Other disorders of glucose regulation and pancreatic internal secretion" within Chapter 4 of the ICD-10-CM Tabular List.

When should I use E16.1?

Use E16.1 when the patients documented diagnosis matches "Other hypoglycemia" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Other hypoglycemia?

The ICD-10-CM code for Other hypoglycemia is E16.1.

Can E16.1 be used for primary diagnosis?

Yes, E16.1 can be used as a primary diagnosis code since it is billable and specific.

What chapter is E16.1 in?

E16.1 is in Chapter 4 of the ICD-10-CM Tabular List.

What conditions are excluded from E16.1?

Type 1 Excludes for E16.1 include: diabetes with hypoglycemia (E08.649, E10.649, E11.649, E13.649); hypoglycemia in infant of diabetic mother (P70.1); neonatal hypoglycemia (P70.4).

Is E16.1 valid for 2026?

Yes, E16.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousE16.0Drug-induced hypoglycemia without comaNext →E16.2Hypoglycemia, unspecified
Code Details
E16.1
Other hypoglycemia
Billable / Specific Code
4 — Endocrine, nutritional and metabolic diseases (E00-E89)
E15-E16 — Other disorders of glucose regulation and pancreatic internal secretion
2026 ICD-10-CM